4x2-7x+7=2x+2

Solution for 4x2-7x+7=2x+2 equation:

4x^2-7x+7=2x+2

We move all terms to the left:

4x^2-7x+7-(2x+2)=0

We get rid of parentheses

4x^2-7x-2x-2+7=0

We add all the numbers together, and all the variables

4x^2-9x+5=0

a = 4; b = -9; c = +5;
Δ = b2-4ac
Δ = -92-4·4·5
Δ = 1
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{1}=1$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-9)-1}{2*4}=\frac{8}{8}
=1
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-9)+1}{2*4}=\frac{10}{8}
=1+1/4
$